| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | # intmax.m4 serial 5 (gettext-0.18) |
| 2 | dnl Copyright (C) 2002-2005, 2008-2010 Free Software Foundation, Inc. |
| 3 | dnl This file is free software; the Free Software Foundation |
| 4 | dnl gives unlimited permission to copy and/or distribute it, |
| 5 | dnl with or without modifications, as long as this notice is preserved. |
| 6 | |
| 7 | dnl From Bruno Haible. |
| 8 | dnl Test whether the system has the 'intmax_t' type, but don't attempt to |
| 9 | dnl find a replacement if it is lacking. |
| 10 | |
| 11 | AC_DEFUN([gt_TYPE_INTMAX_T], |
| 12 | [ |
| 13 | AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) |
| 14 | AC_REQUIRE([gl_AC_HEADER_STDINT_H]) |
| 15 | AC_CACHE_CHECK([for intmax_t], [gt_cv_c_intmax_t], |
| 16 | [AC_TRY_COMPILE([ |
| 17 | #include <stddef.h> |
| 18 | #include <stdlib.h> |
| 19 | #if HAVE_STDINT_H_WITH_UINTMAX |
| 20 | #include <stdint.h> |
| 21 | #endif |
| 22 | #if HAVE_INTTYPES_H_WITH_UINTMAX |
| 23 | #include <inttypes.h> |
| 24 | #endif |
| 25 | ], [intmax_t x = -1; |
| 26 | return !x;], |
| 27 | [gt_cv_c_intmax_t=yes], |
| 28 | [gt_cv_c_intmax_t=no])]) |
| 29 | if test $gt_cv_c_intmax_t = yes; then |
| 30 | AC_DEFINE([HAVE_INTMAX_T], [1], |
| 31 | [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) |
| 32 | fi |
| 33 | ]) |